Aldehydes, Ketones and Carboxylic Acids questions
1139 published questions with worked solutions.
- A powerful sedative made from acetaldehyde is:
- When formaldehyde is heated with ammonia, the compound formed is:
- The reagent which can be used to distinguish acetophenone from benzophenone is:
- Propanone does not undergo:
- The reaction, CH₃CHO + H₂N–NH₂ → CH₃CH=N·NH₂, is:
- Which reaction is used for detecting the presence of a carbonyl group?
- Acetaldehyde on treatment with a few drops of H₂SO₄ gives:
- Consider the reaction: RCHO + NH₂NH₂ → RCH=N–NH₂. What sort of reaction is it?
- Aldehydes on reaction with hydroxylamine give:
- Which of the following reagents reacts in the same manner with HCHO, CH₃CHO and CH₃COCH₃?
- Fehling's solution is used in the detection of:
- An aldehyde can be distinguished from a ketone by the use of the reagent:
- Acetaldehyde reacts with PCl₅ to give:
- The reaction, C₆H₅CHO + CH₃CHO → C₆H₅CH=CHCHO + H₂O, is called:
- Aldol condensation between the following compounds followed by dehydration gives methyl vinyl ketone:
- Ketones can be obtained in one step by:
- C₆H₅CHO + HCN → C₆H₅CH(CN)OH; the product is:
- Carbonyl compounds, when treated with sodium bisulphite solution, generally form a crystalline sodium bisulphite addition...
- Which one of the following aldehydes will not form an aldol when treated with dil. NaOH?
- Identify Z in the sequence: CH₃CO·O⁻NH₄⁺ (1. Heat, 2. P₂O₅)→ Y (H₂O/H⁺)→ Z:
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